What if I told you?

You can't move to another state; even stronger you can't move to another city within your state. The ACLU would probably come to your defense and accuse the government of violating your civil rights. You probably have never even thought about moving within the US as "immigration".

In Cuba however, it is illegal for you to change cities or provinces without government approval. An recently, about 20K "illegal" residents of La Habana got "deported" back to their places of origin.

But don't fret, after all they have free health care.